CVE-2026-26079
4.7
MEDIUM
CVSS 3.1
EPSS 0.08%
Description
Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because comments are mishandled.
How to fix CVE-2026-26079
To remediate CVE-2026-26079, upgrade the affected package to a fixed version below.
- Debian/roundcube—upgrade to 1.4.15+dfsg.1-1+deb11u7 or later
Is CVE-2026-26079 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.4.15+dfsg.1-1+deb11u7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.7 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N |